SK's answer to Lutz's Primary 3 Maths Singapore question.
Ask yourself
what you need to guess....
No. of pens
No. of files
and what to check....
No. of P+F must be 9
Total cost must be $39
Once you figure out what to guess and what to check, you can follow your answers to set up the table.
what you need to guess....
No. of pens
No. of files
and what to check....
No. of P+F must be 9
Total cost must be $39
Once you figure out what to guess and what to check, you can follow your answers to set up the table.
Thank you Teacher SK
Most welcome :)
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